Dr. J.A. Navío is Full Professor of Inorganic Chemistry at the University of Seville (Spain), where he teaches in subjects in the area of Inorganic Chemistry. In 1981, J.A. Navío received his Ph.D. in Chemistry from the University of Seville (Spain). He received a postdoctoral fellowship at the School of Studies in Chemistry and Chemical Technology in the University of Bradford (U.K.). He has over 45 years of professional experience in materials synthesis and characterization for (photo)-catalysis. He has been the advisor of numerous doctoral theses related to the synthesis, characterization and photo-catalytic activity of materials for the treatment of environmental pollution both for treatments of contaminated waters and gases. His research activities are carried out at the Institute of Materials Science of Seville (Spain), leading the research group named “Heterogeneous Photocatalysis: applications”. He has authored or co-authored more than 240 papers published in indexed journals (H=67). Dr. J.A. Navío has collaborated with many scientists all over the world producing many joint papers in journals, and Abstracts in proceedings of national and international conferences. His interest is focused on the Science of Materials particularly in developing materials with (photo)-catalytic functionality, within the research line Materials for Energy and the Environment. He is currently Honorary Researcher in the Department of Inorganic Chemistry at the University of Seville.